Test case for Access Matters Quiz 5.2.8

This test hides material using a technique I refer to as "hidden off top". The hidden material follows immediately.

Respond to the original question in the Access Matters blog. Please tell us:

This technique comes from our Quiz: 2.4.1 but uses a more complete solution from WebAim. Here is the CSS:

.hidden {
position:absolute;
left:0px;
top:-500px;
width:1px;
height:1px;
overflow:hidden;
}